Rockwell Automation 22D PowerFlex 40P User Manual, FRN 3 - Manual (Page 162)

E-2 Velocity StepLogic™, Basic Logic and Timer/Counter Functions
Velocity StepLogic Using Timed Steps
To activate this function, set parameter P038 [Speed Reference] to 6 “Stp
Logic”. Three parameters are used to configure the logic, speed
reference and time for each step.
•
Logic is defined using parameters A140 - A147 [Stp Logic x].
•
Preset Speeds are set with parameters A070 - A077 [Preset Freq x].
•
Time of operation for each step is set with parameters A150 - A157
[Stp Logic Time x].
The direction of motor rotation can be forward or reverse.
Figure E.1 Using Timed Steps
Velocity StepLogic Sequence
•
Sequence begins with a valid start command.
•
A normal sequence begins with Step 0 and transition to the next step
when the corresponding StepLogic time has expired.
•
Step 7 is followed by Step 0
•
Sequence repeats until a stop is issued or a fault condition occurs.
Time
0
Forward
Reverse
Step 0 Step 1 Step 2 Step 3 Step 4 Step 5 Step 6 Step 7